Moiya, a poor woman living in the slums of Athkatla, borrows some money from a person of unknown connections and capabilities, and is worried because she cannot meet the terms of her bargain. She approaches a party of adventurers, hoping they might intercede on her behalf. All well and good, and certainly a reasonable outline for the plot of a minor quest to be added to BG2. But let's take a look at the specifics.
The amount she has borrowed is 5000 gold pieces. In Athkatla, 5000 gold is enough to: buy around 700 battle axes. Is Moiya planning to equip an army? Enough for a party of 6 to spend 500 nights in the noble accomodations of an inn. Has she decided that her family deserves to sample the high life for a year or so? Enough to buy a powerful magic item. Is she really the leader of a band of adventurers about to undertake a major quest, and a little short on cash? In other words, she has managed to borrow what likely represents several year's worth of her income. And she must pay it all back - in 6 days. Not only must she repay what she has borrowed, but the money-lender has demanded a fee of 1250 gold pieces. An interest rate of 25% per 6 days, or 125% per month, or an annual percentage rate of 1500%! Celile makes the Mafia look like kindly-hearted and gullable bankers! Unless Moiya was planning to buy a huge shipment of black lotus, and sell it all in 6 days, none of this makes any sense.